2143055220 has 48 divisors (see below), whose sum is σ = 6316376640. Its totient is φ = 541403136.

The previous prime is 2143055219. The next prime is 2143055221. The reversal of 2143055220 is 225503412.

It is an interprime number because it is at equal distance from previous prime (2143055219) and next prime (2143055221).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143055221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 938797 + ... + 941076.

It is an arithmetic number, because the mean of its divisors is an integer number (131591180).

Almost surely, 2^2143055220 is an apocalyptic number.

2143055220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143055220 is an abundant number, since it is smaller than the sum of its proper divisors (4173321420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2143055220 is a wasteful number, since it uses less digits than its factorization.

2143055220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879904 (or 1879902 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2143055220 is about 46293.1444168572. The cubic root of 2143055220 is about 1289.2717119814.

Adding to 2143055220 its reverse (225503412), we get a palindrome (2368558632).

The spelling of 2143055220 in words is "two billion, one hundred forty-three million, fifty-five thousand, two hundred twenty".